Question

42 both the respiratory system and the digestive system involve the uptake of necessary molecules from an animals surroundings. alveoli are tiny sacs that aid in the exchange of carbon dioxide and oxygen in the lungs. intestinal villi are tiny projections along the lining of the intestines used to take in nutrients from food passing through. which system must interact with the respiratory and digestive systems to transport gases and nutrients throughout the body? a integumentary system b circulatory system c endocrine system d immune system

Explanation:

The circulatory system, with its heart and blood - vessels, is responsible for transporting oxygen from the lungs (respiratory system) and nutrients from the intestines (digestive system) throughout the body. The integumentary system is mainly for protection and temperature regulation, the endocrine system for hormone - based regulation, and the immune system for defense against pathogens.

Answer:

B. Circulatory system